Smoking pipe



provided withasmokerduct 8E 2,642,069 UNITED-STATES .PATENT OFFICE y Arthur Modine`,facine,wis. *mataron meer 12, meegebra-.w19

'My invention relates to vsmoking pipes-@96:15 particularly designed to provideano'vel construction and arrangement where a cool, dry smoke maybe obtained;`

Among its objects is the production oi afsniolging pipe which is simple, .inexpensive and par- -ticuIarlyfcient not .onbgin cooling. .the smoke, but also;in;aeratingf,andi-.drying the.. tobacco .at .the .bottom ofithebQWLe,thereby.prfvell'ingrtle .accumulation of,soggy, ,moist tobacco at the interioi: ofthe bpegbowl. .i139 pethf; thefl@ drawnirom thebowl t9. ,thestem and. Pit- A `the .conventional .telelens .Pips l' it 1S unknown tot..

.snfw.1 ert at tiiesilk er! 'a slvugo/f a wetf-oultastirng and undoubtedlynn- .healthy mass.. With .thef contents of thepipe b Y. A I i M substantiallydryat 'all times, so that the tobacco may, be more or'less completely burned. 1 AQfu'rther. objct`,.is'the vproduction of an ad- .justable'therr'stato valve means for controlling theaudrriission of air tothe interior o f the bowl fand which will notinf` anyway vmar or detract .tiebntoini .nip exterior of the bowl, arid within this bore is arranged a lsleeve I2', which in the `preferred'construction shown extends through an -Theg upper 'or inner` end ofthe duct I5 in the screw member I 4 communicatesl with a transverse `ductfIB at the end,,the end or top being closed my improved' aerated pipe, l 'at the lbottom is yfrom theappearance of the pipe, thesam'e retain-y ing the appearance ofva, conventionalsmoking pibe-v Many `other objects and t Vstructionr herein shown and described'will be ob.- f'ius tof thcserskiuedjm megan 'frere-the di closures hereingiven;

construction,- arrangeme Yt andcmbiamnfof advantages ofl thec'onf T6 this end mymveption consists@ ihleinovel I `parts herein shownk and describedjandiiMQ'N; naif? ticularly pointed outin the appended; claims; j In lthel drawings; wherein likeefreferrence c aracters indicate like orcorresponding parts; Y

Figiflfis KAa sectional Viewv of a-srnokingfpipe -constructed ashereindescribed withmyiimproved TT Figc-2 Vis a 'sectional view oni a larger scale illus*- tratingV the airpassages of the adjustable' tubular member, partly'in section, and al'softhe' automatic l thermostaneany lp'ntroiledg aeration: g

commi' of the-'admission' pf air to the airlduct;

A Y V j Fig. 31 is a crossv sectional view taken substantially on line 3--3 of Fig. 2.

Referring AtomtheV drawings, y I `represents a conventional 'pipe bowl'f'anydesiredsiza shape 'and material provided withaecessorchamber 2, mt@

whichthe tobacco is placed, the bowl beingvprofrv vided `with the conventional" stem 3,., thr'oughwhich exten'dsalsifnokeA "duct 425. Thestem may Abe provided with a' bit or mouthpiece 5, kofjsuit- 4 able material which in any suitable mannenthe same as shown1 being provided` with an"end"1^arrange`d to frictionally engage the stem at the` outer end, and which'is whether the bit isgoictbe. pushrn'type as Shown or. a threaded or like type, these types being more or `les's conventional. M ,l

The pipe; is provided with` a borev or opening; I I, extending from-the 'interior off-the Vbowladjacent 5' t is infiniateri'alv may bez'secu'red to "the stem Y Thelower end of the screwalt `isrconstruoted I to provide a valve seat I9 arranged to cooperate with amovable thermostatic valve member ZI, as shown,r of the bi-metal type which as shown is bent or looped back upon itself as shown at 22, with ythe end V23 secured between the sleeves rI2 and -I3,fand=screw/I4 'being in heat conducting relationship; The free end 2! ismovable and arranged to cooperate with the valve seat I5! at the outer end ofthe screw I4 so that when the vpipe isvlighted, Aheat inv due vtime will be transmitted trom therinte'rior ofthe bowl through the screw I l and sleevesIZiand I 3 and the body of the pipeto the thermostatic Avalve member 2l, The construction and'adjustr'nent is such that when thel parts are Lcool'the thermostatic member normally willclose the port o'rduct I at the valve seat I9fand prevent the vadmission of air to the bowl interior, but as soon as suilicient` heat reaches the bi-metal valve the same will open, the extent of openingl depending upon the heat reach'- ing thev same.Y with theA duct I5 being adjustable, the time and extentof opening of the duct and the admission of the cool air into the interior of the bowl may be controlled or varied as desired bylinserting a screw Vdriverin the slot I'I andadjusting the tubu-y lar screw I4. If preferred, the screw head may be constructed to fit a' socket wrench, instead of slotted for arscrewv driver. Ask will be noted the' bowl' isv preferably provided with a recess '20 in which the thermostatic member2 I may be seated However, the tubular screw I4 been found that upon completing the smoking of a pipe full of tobacco, the ashes may be knocked"4 out leaving the bowl entirely empty and freeof any sludge since no sludge or wet tobacco has accumulated in the bowl. readily Vadjusted or removed for cleaning and a wire or pin pushed through the duct |5` or passage I8. It has been found that this is rarely if ever needed even when the pipe has been in use for a prolonged period.

'Having thus described my invention, it is lobvious that various immaterial modifications may be made in the same without departing `from the spirit of my invention; hence, I do not wish to be understood as limiting myself to the-exact form, construction, arrangement and combination of parts herein shown and described or uses mentioned.

What I claim as new and desire to Ysecure by Letters Patent is:

1. In a smoking pipe having a bowl', said bowl provided with an air intake duct adjacent the bottom, an internally threaded sleeve arranged in said duct, an externally threaded tubular screw open at its outer end threadedly engaging said sleeve at the interior thereof and provided with a valve seat at its outer end, the inner end of said tubular screw being closed and provided with a transversely extending duct through vthe same adjacent its closed endconnecting with the interior of the tubular screw, and a thermostatically operated valve member mounted on The -s-crew lI4 may bev 4 with an opening through the bottom of the bowl,

V an internallythreaded `metal sleevearranged in saidf opening and-secured therein; a metal tubular member screw threaded into'said metal sleeve v and adjustable therein, a bi-metallic strip having one end secured to said sleeve and thence bent laterally and under and back upon itself,

V with.,the, free end disposed in proximity to the "outer open' end of said tubular member and in the bowl at the exterior thereof and substantially iiush therewith for cooperation withsaid valve seat at the outer end of the tubular screw, said closed end extending into said bowl to providemeans for effecting rotation and thus adjustment, from within said bowl of'said tubular screw relative to said sleeve andsaid valve member. 2. In a smoking pipe having a bowl for containing tobacco, said bowlV provided with an air intake duct adjacent the bottom, an 4internally fz.

threaded sleeve arranged in said duct, anexternally threaded tubular screw communicating with the interior of the bowl threadedly' engaging said sleeve at the interior thereof, said tubular screw being open at its outer end and provided with a valve seat thereat, and a Athermostatically operated valve member mounted on the sleeve at the exterior of said bowl for cooperation with said valve seat at the outer open end of the tubular screw and operative to open or close the valve seat as the thermostatically operated 'alve member becomes heated or cooled.

3. In a smoking pipe of the kind described having a tobacco containing bowl and in combination, an air admission duct at the bottom of 1 .the bowl, an Vadjustable tubular member 'mounted in said air duct and provided with a valve seat at its outer end, a valve member comprising a bimetallic thermostatic member having one end operatively connected to the bowl independently of said adjustable tubular member and with the other end looped back and engageable with the outer end of said adjustable member to constitute a .valve cooperating with the outer end of s "-bilar member and operative to control the aum-lun of air to the interior-of the bowl;

4. In a pipe of the kind described provided engagementv therewith to seat upon and close the open end when cold, said bowl being recessed at `the exterior to substantially contain the bimetal strip, said bi-metal strip yconstituting a temperature controlled valve member for regulating the admission of air to the bowl interior.

L5. A device of thekind described comprising a pipe bowl having a chamber for containing tobacco and with a tubular stem communicatin with the interior of the bowl adjacent the bottom of said chamber, said bowl provided with a duct therethrough and with a tubular screw mounted in said duct and movable inwardly or outwardly by engaging and turning' of `the'screw, the inner end of the latter being exposed at the bowl interior and by means of'which such adjusting action may be effected, and thermostatically actuated means having a portion thereof Yse"- 'cured to the bowl'and locatedv between the screw and a portion of the bowl and held thereby in such position, another portion of said means adapted to engage and seal oneend of the screw for controlling the admission of fair through said tubular screw when the pipe is smoked, the admission of air through the screw to the interior of the bowl being increased or decreased depending upon thetemperature of the bowl and screw member.

6. In a smoking pipe of the kind described, a bowl formed with a chamber and having a tubular stem extending therefrom and communicating with said chamber in the bowl, the latter having a lrecess formed at the bottom of .the bowl, a tubular, ,adjustable member mounted iat `the bottom of the bowl with an end disposed within the bowl, saidflast mentioned end constituting means for effecting adjustment of said member from within the bowl, and the other end of said member projecting into therecess, a thermostatic member having a portion thereof secured tothe bowl and located betweenthe tubular adjustable member and a portion of .the bowl and held thereby in such position-another*portion of said means adapted to engage and seal one end of the tubular adjustable member, and said thermostatic member concealed withinthe recess and substantially flush with the bowl so that the thermostatic member is protected against injury.

` ARTHUR B. MODINE.

References Cited in the le of this patent UNITED STATES PATENTS Number Name A Date 1,206,625,A Vetter n NOV. l28, 1916 1,254,673 j Giaccone Jan. 29, 1918 1,589,058 l Erickson v June 1 5, 1926 2,166,172 Modine 1-, July 18, 1939 .2,231,176 Balln Feb. l1, l1941 2,264,626 Dunwoodie Dec. 2, 1941 f 2,364,424 Burch r i Dec. 5, 194#I y FOREIGN PATENTS Number Country M ,Datei 

